LP3879SDX-1.2/NOPB

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The LP3879SDX-1.2/NOPB is a micropower, low-noise linear voltage regulator manufactured by Texas Instruments. It provides a fixed output voltage of 1.2 V with a maximum continuous output current of 800 mA. The device operates within an input voltage range up to 6 V and maintains regulation across a junction temperature range from -40°C to +125°C. Key electrical specifications include a quiescent current of 1.4 mA and a supply current of 2.2 mA. It features a power dissipation rating of 1.5 W in the TO-263 package and offers a power supply rejection ratio (PSRR) of 60 dB at 1 kHz.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Designed for ceramic-stable operation using very low ESR output capacitors
• Includes integrated enable control functionality
• Provides comprehensive protection against overcurrent, thermal overload, and short circuits

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Low voltage portable electronic systems
• Battery-powered consumer devices
• Micropower embedded applications requiring stable regulation

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the component marking and datasheet revision level upon receipt to ensure compliance with RoHS standards. Confirm that the TO-263 package matches the required PCB footprint. Check for any specific handling instructions related to moisture sensitivity during storage and assembly processes.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this regulator when a fixed 1.2 V output is required with high efficiency and low noise characteristics. It is suitable for designs prioritizing minimal static power consumption while supporting loads up to 800 mA. Ensure the input voltage remains within the specified 6 V limit and verify thermal management capabilities for the chosen operating conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This component belongs to the LP3879 family of micropower LDO regulators. It shares architectural similarities with other members like the LP3879MRX variants but differs in package type and pinout configuration. The series is characterized by its ability to drive ceramic capacitors directly without stability issues, distinguishing it from older regulator generations.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

LP3879MR-1.2/NOPB

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators FAQ

Is the LP3879SDX-1.2/NOPB stable with ceramic output capacitors?

Yes, the device is specifically designed to be ceramic-stable, allowing the use of very low ESR ceramic capacitors.

What is the maximum input voltage for this regulator?

The maximum input voltage supported by the LP3879SDX-1.2/NOPB is 6 V.